Consider the following statements: 1. A geo-stationary satellite is at an approximate height of 10,000 km.

Question

Consider the following statements:

1. A geo-stationary satellite is at an approximate height of 10,000 km.

2. FM transmission of music is of very good quality because the atmospheric or man made noises which are generally frequency variations can do little harm.

Which of the statements give above is/are correct?

(a) 1 only (b) 2 only (c) Both 1 and 2. (d) Neither 1 nor 2

Answer 1

(b) The geostationary satellite is a satellite having a time-** of 24 hours. Using this time-**, the height of the satellite comes out to be approximately 35,800 km. FM broadcasting is a broadcast technology pioneered by Edwin Howard Armstrong that uses frequency modulation (FM) to provide high-fidelity sound over broadcast radio. FM transmission is quite immune to noise as compared to AM transmission. Noise is a form of amplitude variations in the transmitted signal due to atmosphere, industries, etc.